<template>
    <div class="login-container">
        <div class="login-box">
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 表单 -->
            <el-form ref="loginFormRef" :rules="rules" :model="loginForm" label-width="0px" class="login_form">
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input type="password" v-model="loginForm.password" prefix-icon="iconfont icon-3702mima">
                    </el-input>
                </el-form-item>
                <el-form-item class="btns">
                    <el-button type="primary" @click="Postlogin">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
    export default {
        data() {
            return {
                // 表单数据
                loginForm: {
                    username: 'admin',
                    password: '123456'
                },
                // 验证规则
                rules: {
                    username: [
                        { require: true, message: "请输入用户名", trigger: "blur" },
                        { min: 3, max: 18, message: "长度为3-18字符之间", trigger: "blur" }
                    ],
                    password: [
                        { require: true, message: "请输入密码", trigger: "blur" },
                        { min: 6, max: 16, message: "长度为6-16字符之间", trigger: "blur" }
                    ]
                }
            }
        },
        created() {

        },
        methods: {
            // 重置
            resetLoginForm() {
                this.$refs.loginFormRef.resetFields();
                console.log(this.$refs);
            },
            // 登录
            Postlogin() {
                // valid表单验证的rules的结果
                this.$refs.loginFormRef.validate(async (valid) => {
                    if (!valid) {
                        return;
                    } else {
                        const { data: res } = await this.$http.post('login', this.loginForm);
                        if (res.meta.status == 200) {
                            // 保存token
                            window.sessionStorage.setItem('token', res.data.token);
                            this.$message.success("登录成功即将刷新页面");
                            setTimeout(() => {
                                this.$router.push('/home');
                            }, 1000);
                        } else {
                            console.log(res);
                            // $message弹框提示组件在element.js里Vue原型对象继承了
                            return this.$message.error("登录失败")
                        }
                    }
                })
            }
        }
    }
</script>

<style lang="scss" scoped>
    .login-container {
        height: 100%;
        background: #2b4b6b;
        display: flex;
        justify-content: center;
        align-items: center;

        .login-box {
            width: 450px;
            height: 300px;
            background: #fff;
            border-radius: 3px;
            position: relative;
        }

        .avatar_box {
            height: 130px;
            width: 130px;
            border: 1px solid #eee;
            border-radius: 50%;
            padding: 10px;
            box-shadow: 0 0 10px #ddd;
            position: absolute;
            left: 50%;
            transform: translate(-50%, -50%);
            background: #fff;

            img {
                width: 100%;
                height: 100%;
                border-radius: 50%;
                background: #eee;
            }
        }

        .login_form {
            position: absolute;
            bottom: 0;
            width: 100%;
            padding: 0 20px;
            box-sizing: border-box;

            .btns {
                display: flex;
                justify-content: flex-end;
            }
        }
    }
</style>